1. Prepare data (SMS, contacts, downloaded applications, etc. ), and then please follow the following steps to restore the factory settings:

2. After the phone is turned on, enter the phone settings-storage-menu and pull it to the bottom, and then click Restore Factory Settings.

3. Turn off the phone completely first, then press and hold the volume minus key+power key at the same time until the Hboot interface appears on the phone, then let go, press the FACTORYRESET item on the volume selection page, press the power key after selection to confirm that all data is cleared and the factory settings are restored.

4. After restarting the phone, the phone will return to the factory settings.